Job Recruitment Website - Recruitment portal - (20 10? Jinhua is a jet boat designed and manufactured by a scientific and technological team. It floats on the surface of the indoor swimming pool and opens the funnel.
(20 10? Jinhua is a jet boat designed and manufactured by a scientific and technological team. It floats on the surface of the indoor swimming pool and opens the funnel.
(1) The jet boat resting on the water can move forward after the gas is ejected, indicating that the force can change the motion state of the object;
(2) Hydrochloric acid reacts with sodium carbonate to generate sodium chloride, water and carbon dioxide. The chemical equation of this reaction is: 2HCl+Na2CO3 ═ 2NaCl+H2O+CO2 ↑.
(1) changes the motion state of the object;
(2)2HCl+Na2CO3═2NaCl+H2O+CO2↑.
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